Portion of a golf club head



FIG. 1 is a top perspective view of a portion of a golf club head showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a toe end view thereof;

FIG. 5 is a heel end view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines immediately adjacent to the shaded regions form unclaimed boundaries of the design. The broken line showing of the oval and flag-shaped regions and the remainder of the golf club head are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a portion of a golf club head, as shown and described. 